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carbon brush J204 20*32*50mm is a sliding contact body that conducts current, which guides the rotor current required for motor operation into the rotor coil through the connecting piece on the slip ring. The fit and smoothness between the carbon brush and the connecting piece, as well as the size of the contact surface, affect its lifespan and reliability. In a DC motor, it also undertakes the task of reversing (rectifying) the alternating electromotive force induced in the armature winding.
Type | resistivity μΩ·m |
Rockwell hardness steel ball 10mm |
volume density g/cm3 | Short circuit commutator test | ||||
Basic value | Load N | Contact voltage drop of a pair of brushes V | 50h wear and tear ≤mm | frictional coefficient ≤ | current density A/ cm2 |
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J201 | 3.5 | 90 | 588 | 2.95 | 1.5 | 0.18 | 0.25 | 15 |
J203 | 8.8 | 75 | 588 | 2.21 | 1.8 | 0.15 | 0.20 | 12 |
J204 | 0.6 | 95 | 588 | 4.04 | 1.1 | 0.30 | 0.20 | 15 |
J204A | 0.8 | 90 | 588 | 4.05 | 1.1 | 0.30 | 0.20 | 15 |
J205 | 6 | 87 | 588 | 3.2 | ≤2 | 0.50 | 0.25 | 15 |
J205A | 2.5 | 89 | 588 | 3.2 | ≤2 | 0.50 | 0.25 | 15 |
J206 | 4 | 93 | 588 | 2.70 | 1.5 | 0.30 | 0.20 | 15 |
Yoyik offers different types of Hydraulic filters for industrial users:
room temperature vulcanizing silicon rubber GDZ421
sealant injector KH-35
TR3 Linseed oil TR3 1 Gallon steam turbine sealing compound
Loctite Sealant 271 50ml
generator cap Sealant 5630W351
epoxy Glass poly acid film powder mica tape HFCS5443-18
Adhesive powder mica tape 5461
generator insulating washer TN-9001
mica tape 14611
insulating plate 1*1000*2000
insulating plate 1.5*1000*2000
Steel plate paper 1.5*900*1200
room temp curing solvent-free varnish 841A+841B
sealant injector KH32
Air-dry Polyester Red Insulating Varnish J1348
Standard & solid packaging ensures your goods safety.
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